.navbar-nav {
    display: flex;
    align-items: center;
    padding-left: 0; /* 确保按钮靠左 */
}

.navbar-nav .nav-item {
    margin-right: 10px; /* 按钮之间的间距 */
}

.navbar-nav .nav-link {
    padding: 0.5rem 0.75rem;
    color: #343a40;
    text-decoration: none;
}

.navbar-nav .nav-link:hover {
    color: #007bff;
}
